Spark-plug and air-compressor



D, (JMBS. SPARK PLUG AND AIR COMPRESSOR. APPMGAFJUJN NLBD JUNE 2o, 1912.

a-tented Mai. 21%, 9M

' NVEJVTOR L/j COI?? JAS LENA n. contres, or Warnier?, onto.

' SPARK-PLUG AND Alft-GQMFRESSG? mennen.

Speccaton'of Letters Patent. f

y Application med .Tune 2l), 1912. Serial No.

2'@ all whom it man concern Be it known that I, 'DENA B. Collins, citizen ot the Unitedf States, residing at lli'everly, in the county of Pike and State of Ohio, have ,invented 'certain new and useful Improvements inl Spark-Plugs 4and Air-Compressors, of which the following is a specification, reference being had therein to the accompanying drawino.

This 'invention relates to a combined spark plug and pump connection which is used in connection with oneof the cylinders of an internal combustion engine. 4.

y'ille incipel object of the invention is to provi-.e a device which `will act as a sparlr plug of an engine but which may he converted into a device hyrneans `of which one of the cylinders maybe converted into a pump for inflating tires of automobiles. This is accomplished by providing an irnproved spark plug with alvalve construction which may he turned' on or ovso 'that when the piston head moves away from thespark ping; the suction will he through the spark o ping'instead of through the intake from the carburetor thereby preventing the gas troni the oarhureter from entering the cylinder when it is desired to use the cylinder as pump. i

This invention is illustrated in the accompanying drawings, wherein :-l

` are l is a view showing a. fragmentary not tvfo cylinders and u sectional view intermediate'cylinder, the improved spilli plug, Ybeing connected'with the intermediate cylinder. Fig. 2 is a vvertical sectional i view through the sparkplug. Fig. 3 is a section along the line 3 3 in Fig. 2. Fig. el is a section alongthe line 4 4 1n Flg. 2.

it "ill he seen that this invention is conne( `with the cylinder l which is located between the cylinders 11 and l2.

is necessary since when this device is in user the cylinder with which the improved spark plug is connected forms a purnp and it is necessary to have ythe remaining cylinders provided with the ordinary type of liefert-inv to the accom an ine* drawinf's n b il. i

lt is, of. course, understood that '1t 1s immaterial retreated Mar. a4, 1914sI shaft of the engine so that the driving shaft f -will reciprocate the piston, therebycans-15;, ing the cylinder having the improved. sparklw plug to act as a pump. This improved. spark plug' comprisesthe base vportion jlij having the depending threaded extension 14y which is provided with the central. opening.

Openings 16 lead from vthe opening and communicate with the sloping upper face 17 ot' the hase i3. rl neck lSfis carried'f-G:

hy the hase 13 and is provided withan"- upper end portion 19 which is internally and externally threaded as is clearly shown .A 'lhis neck and-central port1on of the hase 1.3 are provided with an openingl1 in Fig. 2.

2O provided with an "enlarged outer end 'portion to iorin the shoulder 2l. This opening 20 extends through the hase to a pointl adjacent the inner ends of the openingsv 16,r the opening 2O communicating withl these' openings .16. A collar 22,' which forms' a valve for this spark plug, is mounted upon the slopingn face oi' the hase ,and is provided with a ooncaved lower face so that it .fits tightly upon this fiat face i7, thnsornfi'-` ing a tight joint. The collar is provided with a coi'rtinuous annular pocket 23 formed in its lower portion which is positioned in the path of the openings i6 so that the air which driven .out oi the cylinder may enter the poenet and pass out of the pocket harge cock Qd.. Small through the d pockets lead troni the annular pocket .23

and are provided with reduced outlets 26,

screens 2T being positioned 'in the inner ends of the pockets tioned in the sockets the screenspro- .f'entingr the halls from dropping 'into' the Balls 28 are'p'osipocket but pern'iitting air from the cylinder to through the screens so that when the air driven out ol the cylinder by the piston. the halls 2S will he forced into the inner ends oi the openings thereby. preventing air 'from escaping; throughV` the openingfs and forcing the air to pass out through the cock A rubber tuhe 29 isconnected with this coclrl when desired7 so that air may he conveyed to the tires of the automobile thus infin ting the tires. Lock# l ing nuts 30 are screwed upon the upper end portion l) of the neck 18 so 'that the collar ,Q2 will he held tightly in place. These nuts may he adjusted so `that while the collar upon the Vopenings 15 and 16 into the no gas will be forced into the tire.

fits tight enough the suction will be through the spark plug to prevent leakage, it may be turned a suilicient amount to bring the openings 26 out of alinemgnt with the openings 31 formed in the nuts 29 and 30. An arm 32 extends from the collar, and the lever 32 is pivotally connected with the arm so that the turning of the arm will be greatly facilitated.

An insulating stick 33 is placed in the opening 20 and is provided with an enlarged shoulder 33 which rests upon the shoulder 21. A collar 34 is threaded into the upper portion 19 of the neck 18 and fits against the upper tace ot the shoulder-33 so that the insulating member is tightly held in place. 'A threaded stem 35 passes throughthe insulating stick and is threaded through the central portion 36 ot the base 13. "his stem forms one pole ot the spark plug, the second pole 37 being carried by the neck 14. A An arm 38 is mounted stem and has its free end resting upon the valve 39 ot the cock 2&1 so that a short circuit will be formed through the spark plug when pumping. Clamping nuts 40 are screwed upon one end of the stem 35 so that this arm 38 may be held in lace.

`When thev engine is in operation, the collar 22 is turned so that the openings 26 are out ot alinement with the openings 31, and the valve 89 is turned so that all communication is cut oit with the outer air. The device will then operate as an ordinary spark plug and cxplodes'the gas in 'the cylinder so that the cylinder assists the remaining cylinders to rotate the crank shaft. 1When it is desired to in'tlate a tire, the collar is turned to the position shown n Figs. 1 and 2, and the valve 39 ot'rthe cock 24 turns so that a clear passage is -formed through the cock. The tube 29 is connected with the cock and with the valve of the tire, and the engine is then started. The cylinders 11 and 12 rotate the crank shaft and the crank shaft reciprocates the piston of lthe cylinder 10 so that the piston upon a' downward stroke causes a suction through the openings 31, 16, and 15, into the cylinder. Upon the return stroke the airy passies through the 'pocket 23 and out through the cock 24: into thetube 29 through which it passes into the tire. It is, of course, obvious that 'when the piston is upon the downward stroke that it takes less Leffort to suck air through the spark plug than to suck through' the valve controlling the, carbureter and, therefore,

and notthrough the carbureter. Thereiore, the gas from the carbureter does not enter the cylinder and it is, therefore, obvious that It is also obvious that when air is forced into the spark plug by the piston, that the force ot air drives the ball ings 26 thus closing ing the remaining portion of air to pass into the tube 29 and from thence into the tire. After the tire has been pumped up the collar is turned to bring the openings 26 out ot' alinement with the openings 31, and the valve 39 turned to a closed position and the suction will then be through the carbureter, and the spark plug act as an ordinary spark plug to explode these gases. Having thus described what is claimed as new is r- 1. A spark plug comprising a base pro.- vided with a plurality ot openings formed therethrough, a pole extending through said base, a collar mounted upon said base and provided with an annular pocket in its lower portion registering with. the openings of said base and with an outlet leading from the side of said pocket, valve pockets formed in the upper portion of said collar and leading from said irst mentioned pocket, convalves 2S'into the openthe invention,

the openings and cans-- trolling valves mounted in said valve pock- 2. In a spark plug a baseliaving openings formed therethrough, a collar rotatably K mounted upon said b'ase and provided with a pocket communicating with the openings formed in said base and with valve pockets extending above said first mentioned pocket, valves mounted in said valve pockets, and securing nuts mounted upon the upper portion of said base to hold said collar upon said base and provided with alined openings registering with the openings of said valve pockets when said collar is rotated to bring the openings of the valve pockets into registry with the openings rin the securing nuts.

3. A spark plug of the character described comprising a body portion provided with a vertically extending opening and with openings leading from its upper tace and communicating with the vertically extending opening, a pole insulated in the vertically extending opening, a chambered controlling collar adjustably mounted upon said body portion and provided with inlet openings leading from its chamber, valves carried in the openings of said collar, an outlet cock leading from the chamber of said collar, perforated clamping nuts mounted upon said body portion to hold said collar upon said body portion, the turning of said collar bringing its openings into and out ot registry with the openings of Said nuts, and. an arm leading from said pole to said outlet cock. z

1. A spark plug comprisinga perforated base having a contact pole, an insulated pole passing through said base and terminating ad'acent the pole of said base, a rotatable Colla-r carried by said base mol provided sal collar, and an mn leading from said with n chamber inclosng the openings of insulated pole to said cock. sndb'ase and provided With-inlet openings, In testimony whereof I hereunto alix my valves in the inlet openings of said Collar, signature in presence of two witnesses'.

an outlet Coeli leading from the Chamber of DENA B. COMBS.

said Collar, a securing nui; holding said col- Viilnesses:

lar upon Saud base and provided Wlth open- CHARLES l?. COMES,

ings I eglstenng Wltlx the lnlet openlngs of. A R. H. LE CONEY. 

